Malicious PDF — malware analysis report

Static analysis result for SHA-256 06d0c1d4f87bf063…

MALICIOUS

PDF

81.7 KB Created: 2020-08-10 20:48:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bbf531797c6bbb2f2da68a118448a0ce SHA-1: 7a78e25caded517c183cf3cefabd035d2d98e47f SHA-256: 06d0c1d4f87bf063917f04a471af7706fb6fec5ba55b28bfb0ca246ed78e8fcd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body and heuristics indicate a lure for free PDF downloads, likely a phishing or scam attempt. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=arist%25C3%25B3teles+livros+pdf In PDF document text
    • http://files.islamandfeminism.org/uploads/1/3/1/0/131070331/wesixewexuri.pdfIn PDF document text
    • http://files.ohioedtech.com/uploads/1/3/1/3/131379716/kiluzuxenobu_xakizemu.pdfIn PDF document text
    • http://files.tenescakes.com/uploads/1/3/1/3/131384442/metiz.pdfIn PDF document text
    • http://files.japanesephilately.com/uploads/1/3/2/6/132695734/jenezutufo_lexiga_sabaxidado_manovus.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8538/9206/files/le_journal_d_aurlie_laflamme_tome_1_pdf_gratuit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6390/1336/files/webijinedixuzajulekogizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/81579197248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21659337375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9313/1425/files/32903127892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8960/0414/files/epigenetics_lyle_armstrong_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2620/3302/files/67782431955.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5666/8565/files/materi_sistem_bilangan_real.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8580/0358/files/xolikon.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f0c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0C2 5012 bytes
SHA-256: 49c579ad8a3c142f8b059dafb51905558e0545b38250a619acfb9780e45f11e2
font_01_sfnt_off0001019b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1019B 2236 bytes
SHA-256: 337d6416420a05dbdd303242054fb0b81607403aa080aa24d751cc4156ccb357
font_02_sfnt_off00010bb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BB6 14356 bytes
SHA-256: de9cef23fadbd661bc0ad643a97ac303e07bf7f6a7c9bdcf6e285a924f65f2b6

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